CONCRETE REPAIRS
Concrete structures are subject to a wide variety of conditions of use, exposure to impact loads and environmental conditions including erosion, weather, temperature fluctuations and pollution. These elements, combined with the quality of construction, determine the rate and extent of deterioration of the concrete.
Concrete repair refers to the modification of a structure that’s been damaged in its serviceability and/or appearance. It involves the restoration of the structures characteristics of load bearing capacity, serviceability, appearance and improvements to stability. The protection, repair and maintenance of concrete structures are integral components of their service life.
CONCRETE Strengthening
Structural strengthening is the method by which a structure is upgraded so as to improve performance under existing loads or to increase the strength of the structures members to bear additional loads. Structural strengthening systems include carbon fibre and structural steel reinforcements.
CONCRETE CANCER
Concrete cancer is the result of corrosion of the steel reinforcement within a concrete structure. As the steel corrodes, it expands and displaces the concrete around it, causing it to become brittle and crack; effectively destroying the concrete from the inside out, thus jeopardising the integrity of the structure. The term “cancer” is used because of the nature of the corrosion – the cracks allow further exposure of the steel to environmental contaminants, which in turn speeds up the corrosion process.
CONCRETE CRACKS
Concrete and masonry cracks may affect only the appearance, they may be a sign of durability issues or an indication of structural distress; they may represent the total extent of the damage or they may point to problems that are much greater. The significance of cracks depends upon the structure itself and the nature of the cracking. Successful long-term crack repair procedures must address not only the cracks themselves but the cause of the cracks as well, otherwise, the crack repair may end up as a temporary fix only. It’s critical that each situation is individually assessed and that the correct repair technique is determined.
PROTECTIVE COATINGS
The application of protective coatings is one of the most effective and economical methods of protection for concrete and steel assets. It enhances the appearance and longevity of equipment, machinery and structures that reside in harsh environments and provides comprehensive protection against abrasion, corrosion, chemical impact and environmental conditions.
CATHODIC PROTECTION
The corrosion of steel reinforcement, prestressed concrete and epoxy coated steel is a major contributor to the deterioration of concrete. If the corrosion is left untreated, it can lead to major repair costs or structure replacement. Cathodic protection is a proven solution that will increase the longevity of new and existing concrete structures by preventing and controlling the corrosion in the metals.
